ch 3 vocab chart

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Term
 Lesson
 Definition
Abscissa
 3-7
 the first number in the ordered pair .
Converse
 3-5
 reversing the Pythagorean Theorem.
Coordinate Plane
 3-7
 a cordinate plane is the whole graph the origin the quardnats and the points
Hypotenuse
 3-5
 the longest side of the right triangle
Irrational Number
 3-4
 a number that does not have a fraction
Legs
 3-5
 the sides that make the right angle
Ordered Pair
 3-7
 any point on the cordinate plane
Ordinate
 3-7
 the second number of the y-cordinate
Origin
 3-7
 is the point of the two lines on the cordinate plane .
Perfect Square
 3-2
 numbers such as 1,4,16, are known as perfect squares.


Pythagorean Theorem
 3-5
 lengths of the legs and the hypotenuse for any right triangle.
Quadrants
 3-7
 four sections of the cordinate plane
Radical Sign
 3-1
 the sign that tells you to square root a nonnegitive number.
Real Number
the real number does not incude decimals in its answer.
Square Root
is a number that when multiplied by itself gives a number like 2 so 2 is the square root of 4
X-Axis
 3-7
 is the horizontal line in the cordinate plane
X-Coordinate
 3-7
 first number of an ordered pair.
Y-Axis
 3-7
 the line thats vertical in the cordinate plane
Y-Coordinate
 3-7
 the second number in the ordinate.